<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    span {
      display: inline-block;
      width: 100px;
      padding: 5px 10px;
      border: 1px solid black;
      margin: 2px;
      border-radius: 5px;
      box-shadow: 2px 2px 2px black;
      background-color: pink;
      text-align: center;
    }
  </style>
</head>

<body>

  <script>
    function sayHi() {
      console.log('hi');
    }
    sayHi()
    // 99乘法表
    function table() {
      for (let i = 1; i <= 9; i++) {
        for (let j = 1; j <= i; j++) {
          document.write(`<span>${j}*${i}=${j * i} </span>`)
        }
        document.write(`<br>`)
      }

    }
    table()
    table()
    table()


  </script>
</body>

</html>